04-24-2007, 03:45 PM
A 53-year-old man develops acute, excruciating chest pain that radiates
to his back. En route to the emergency room, he becomes unresponsive,
and is pulseless on arrival. Resuscitation attempts are unsuccessful.
Autopsy reveals massive hemoperitoneum due to a ruptured aortic
dissection. There is a jagged intimal tear in the ascending aorta,
with a dissecting hematoma in the media, extending from the aortic
valve to the renal arteries. Which feature of this scenario most
strongly suggests hypertension as the cause of the aortic dissection?
A. Adventitial tear above renal arteries
B. Dissection through media
C. Involvement of major aortic branches
D. Origin at ascending aorta
E. Rapid exsanguination
to his back. En route to the emergency room, he becomes unresponsive,
and is pulseless on arrival. Resuscitation attempts are unsuccessful.
Autopsy reveals massive hemoperitoneum due to a ruptured aortic
dissection. There is a jagged intimal tear in the ascending aorta,
with a dissecting hematoma in the media, extending from the aortic
valve to the renal arteries. Which feature of this scenario most
strongly suggests hypertension as the cause of the aortic dissection?
A. Adventitial tear above renal arteries
B. Dissection through media
C. Involvement of major aortic branches
D. Origin at ascending aorta
E. Rapid exsanguination